Contacts composes de trois couches la metallographie The usual base-materlals are copper strips brass stripsphosphor bronze strips and CuNi strips; the usual face materials are Ag stipsAgNi strips .

Powder metallurgical contacts , Silver Alloy, Silver Contacts , Bimetal Contacts , Inlay Clad Stripe , Clad Strips Metal Stripe , Overlay Clad Stripe , Electrical Contacts